| public static IntersectSegmentPolyhedron ( System.Vector3 a, System.Vector3 b, Plane p, int n, float &tfirst, float &tlast ) : bool | ||
| a | System.Vector3 | |
| b | System.Vector3 | |
| p | Plane | |
| n | int | |
| tfirst | float | |
| tlast | float | |
| Результат | bool | |
public static bool IntersectSegmentPolyhedron(Vector3 a, Vector3 b, Plane[] p, int n, ref float tfirst, ref float tlast)
{
var vector = b - a;
tfirst = 0f;
tlast = 1f;
for (var i = 0; i < n; i++)
{
var num2 = Vector3.Dot(p[i].Normal, vector);
var num3 = p[i].D - Vector3.Dot(p[i].Normal, a);
if (num2 == 0f)
{
if (num3 > 0f)
{
return false;
}
}
else
{
var num4 = num3 / num2;
if (num2 < 0f)
{
if (num4 > tfirst)
{
tfirst = num4;
}
}
else if (num4 < tlast)
{
tlast = num4;
}
if (tfirst > tlast)
{
return false;
}
}
}
return true;
}